TPS40195 Status: ACTIVE

4.5V to 20V Buck Controller with Synchronization and Power Good

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Datasheet

4.5V TO 20V SYNCHRONOUS BUCK CONTROLLER WITH SYNCHRONIZATION AND POWER GOOD (Rev. D) (PDF 1142 KB)
13 Nov 2008

	TPS40195
Topology	Buck
Vin(Min)(V)	4.5
Vin(Max)(V)	20
Vout(Min)(V)	0.591
Vout(Max)(V)	17
Regulated Outputs(#)	1
Iout(Max)(A)	20
Switching Frequency(Max)(kHz)	600
Iq(Typ)(mA)	4
Pin/Package	16QFN, 16TSSOP
Thermal Shutdown	Yes
Rating	Catalog
Duty Cycle(Max)(%)	85
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS40193: 4.5V to 18V Input, Low Pin Count Synchronous Buck Controller with Power Good
TPS40192: 4.5V to 18V Input, Low Pin Count, Synchronous Buck Controller with Power Good
TPS40190: Low Pin Count Synchronous Buck DC/DC Controller
TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
TPS54040: 3.5V to 42V Input, 0.5 A Step Down SWIFT™ Converter with Eco-Mode™
TPS51315: 3V to 14V, 10A Synchronous Step Down Converter with D-CAP™ Mode

More Related Products

Product Information

Features

Input Operating Voltage Range: 4.5 V to 20 V
Output Voltage as Low as 0.591 V ±0.5%
180° Bi-Directional Out-of-Phase Synchronization
Internal 5-V Regulator
High and Low MOSFET Sense Overcurrent
100 kHz to 600 kHz Switching Frequency
Enable and Power Good
Programmable UVLO and Hysteresis
Thermal Shutdown at 150°C
Selectable Soft-Start
Pre-Bias Output Safe
APPLICATIONS
- Digital TV
- Entry-Level and Midrange Servers
- Networking Equipment
- Non-Isolated DC-DC modules

Description

The TPS40195 is a flexible synchronous buck controller that operates from a nominal 4.5 V to 20 V supply. This controller implements voltage mode control with the switching frequency adjustable from 100 kHz to 600 kHz. Flexible features found on this device include selectable soft-start time, programmable short circuit limit, programmable undervoltage lockout (UVLO) and synchronization capability. An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs. Over-current detection is done by sensing the voltage drop across the low-side MOSFET when it is on, and comparing it with a user programmable threshold.

The threshold is set with a single external resistor connected from ILIM to GND. Pulse-by-pulse limiting (to prevent current runaway) is provided by sensing the voltage across the high-side MOSFET when it is on and terminating the cycle when the voltage drop rises above a fixed threshold of 550 mV. When the controller senses an output short circuit, both MOSFETs are turned off and a timeout period is observed before attempting to restart. This provides limited power dissipation in the event of a sustained fault. Synchronization on this device is bi-directional. Devices can be synchronized 180° out of phase to a chosen master TPS40195 running at a fixed 250 kHz or 500 kHz, or can be synchronized to an outside clock source anywhere in the 100 kHz to 600 kHz range.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TPS40195PW	ACTIVE	-40 to 85	1.30 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE	Purchase Samples
TPS40195PWG4	ACTIVE	-40 to 85	1.30 \| 1ku	TSSOP (PW) \| 16	View	90 \| TUBE	Purchase Samples
TPS40195PWR	ACTIVE	-40 to 85	1.15 \| 1ku	TSSOP (PW) \| 16	View	2000 \| LARGE T&R
TPS40195PWRG4	ACTIVE	-40 to 85	1.15 \| 1ku	TSSOP (PW) \| 16	View	2000 \| LARGE T&R
TPS40195RGYR	ACTIVE	-40 to 85	1.15 \| 1ku	QFN (RGY) \| 16		3000 \| LARGE T&R
TPS40195RGYRG4	ACTIVE	-40 to 85	1.15 \| 1ku	QFN (RGY) \| 16		3000 \| LARGE T&R
TPS40195RGYT	ACTIVE	-40 to 85	1.30 \| 1ku	QFN (RGY) \| 16		250 \| SMALL T&R		Purchase Samples
TPS40195RGYTG4	ACTIVE	-40 to 85	1.30 \| 1ku	QFN (RGY) \| 16		250 \| SMALL T&R		Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:04 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS40195PW
Americas	Newark	170
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	92
Europe	Farnell	65
Worldwide	Mouser Electronics	70
TI Lead Time*: 20 WeeksTPS40195PWG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS40195PWR
Americas	Newark	388
Asia	Farnell Asia	388
Asia	WPI	945
Worldwide	Mouser Electronics	70
TI Lead Time*: 20 WeeksTPS40195PWRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS40195RGYR
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksTPS40195RGYRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS40195RGYT
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS40195RGYTG4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TPS40195PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40195PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40195PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40195PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS40195RGYR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40195RGYRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40195RGYT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS40195RGYTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TPS40195

Datasheet

4.5V TO 20V SYNCHRONOUS BUCK CONTROLLER WITH SYNCHRONIZATION AND POWER GOOD (Rev. D) (PDF, 1142 KB)
13 Nov 2008

User Guides

Using the TPS40195EVM (Rev. A) (HTM, 8 KB) 371 views
10 Jul 2008 Read Abstract

View User Guides for DC/DC Controllers (External Switch)

Selection Guides

Power Management for Altera FPGAs (PDF, 153 KB) 58 views
29 Sep 2009

More Literature

TPS40195RGY Schematic (PDF, 57 KB) 240 views
15 Feb 2008
TPS40195RGY Bill of Materials (PDF, 27 KB) 125 views
15 Feb 2008
TPS40195RGY Test Report (PDF, 145 KB) 142 views
15 Feb 2008
5V/12V Input DM6467 (x2) Power Ref Design Using a DCDC Controller & Converter (PDF, 158 KB) 589 views
30 Jun 2008
5V/12V Input DM6467 (x1) Power Ref Design Using a DC/DC Controller & Converter (PDF, 131 KB) 901 views
30 Jun 2008

Reference Designs

Description	Part #	Company
High-Frequency Synchronous Buck Converter for Optimized Efficiency	PMP3080	Texas Instruments

Tools & Software

*Required

Design Now with SwitcherPro™

Enter your design parameters below to design now with SwitcherPro™

Input
		Min	Max
*	Vin Min:	4.5 V	20 V
*	Vin Max:	4.5 V	20 V

Output
		Min	Max
*	Vout:	0.591 V	17 V
*	Iout Max:	0.0 A	20 A

Search for more Power Management devices with Power Quick Search on power.ti.com
To learn more about SwitcherPro™ visit www.ti.com/switcherpro

Name	Part #	Company	Tool / Software Type
TPS40195 20V Input, 3.3V Output, 20A Evaluation Module	TPS40195EVM-001	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online and Desktop Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
TPS40K Loop Stability Tool (Rev. A)(ZIP 204 KB ) 502 views 27 Jun 2008

Simulation Models

PSpice Model
- TPS40195 PSpice Average and Transient Model (Rev. A) (ZIP, 443 KB) 48 views
  06 Oct 2008
TINA-TI Reference Design
- TPS40195 TINA-TI Transient Reference Design (Rev. B) (Multiple File Format) 52 views
  17 Dec 2008 Read Abstract
TINA-TI Spice Model
- TPS40195 TINA-TI Average Spice Model (Multiple File Format) 37 views
  17 Dec 2008 Read Abstract
- TPS40195 TINA-TI Transient Spice Model (Multiple File Format) 32 views
  17 Dec 2008 Read Abstract
- TPS40195 TINA-TI Average Reference Design (Multiple File Format) 40 views
  17 Dec 2008 Read Abstract

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All End-Equipment

TPS40195 Status: ACTIVE

4.5V to 20V Buck Controller with Synchronization and Power Good

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Datasheet

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